Kramer Electronics, Ltd.
Contents Contents 1 2 2.1 3 4 5 6 6.
Introduction 1 Introduction Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world of unique, creative, and affordable solutions to the vast range of problems that confront the video, audio, presentation, and broadcasting professional on a daily basis. In recent years, we have redesigned and upgraded most of our line, making the best even better! Our 1,000-plus different models now appear in 11 groups 1 that are clearly defined by function.
Getting Started 2.1 Quick Start This quick start chart summarizes the basic setup and operation steps.
Overview 3 Overview The VS-406 is a switcher/amplifier for unbalanced analog audio stereo signals. The unit mechanically switches the single line input to one output, either one of ten unpowered unbalanced audio stereo line outputs, or one of six amplified speaker outputs. The unit does not switch to line and speaker outputs simultaneously.
Your VS-406 Audio Selector/Amplifier Figure 1: VS-406 Audio Selector/Amplifier Table 1: VS-406 Audio Selector/Amplifier Functions # 1 2 3 4 5 6 7 8 4 Feature ON LED LINE OUT SELECTOR Buttons LOUDSPEAKER OUT SELECTOR Buttons LOUDSPEAKER VOLUME Knob OUT (SPKR) (L+, L-, R+, R-) Terminal Blocks LINE INPUT (L, R) RCA Connectors LINE OUTPUT (L, R) RCA Connectors 24V DC Connector Function Illuminates green when receiving power Press to choose the output line (1 to 10) Press to choose the output speaker pair (1
Installing the VS-406 in a Rack 5 Installing the VS-406 in a Rack This section provides instructions for rack mounting the unit.
Connecting and Operating the VS-406 6 Connecting and Operating the VS-406 To connect the VS-406, as shown in Figure 2, do the following 1: 1. Connect an unbalanced stereo audio source (for example, a stereo audio player) to the LINE INPUT L and R RCA connectors. 2. Connect the LINE OUTPUT RCA connectors to up to 10 unbalanced stereo audio acceptors (for example, stereo audio recorders). 3. Connect the OUT (SPKR) connectors to up to 6 speaker pairs (use only passive, unpowered speakers). 4.
Connecting and Operating the VS-406 Figure 2: Connecting the VS-406 Audio Selector/Amplifier 7
Connecting and Operating the VS-406 6.1 Optional Gain Adjustment You can set the overall gain of the loudspeaker outputs by adjusting the gain DIP-switches located on the circuit board inside the VS-406. Settings available are 26dB, 32dB, 38dB (factory default setting) and 42dB. To set the gain DIP-switches: 1. Remove the screws from the top and sides that hold the top cover. 2. Remove the top cover to access the circuit board. 3.
Technical Specifications 7 Technical Specifications The VS-406 technical specifications are shown in Table 2: Table 2: VS-406 Technical Specifications 1 INPUTS: OUTPUTS: 1 unbalanced stereo audio on RCA connectors 6 powered speakers on springed terminal blocks; 10 line level unbalanced audio stereo on RCA connectors INPUT SENSITIVITY: 0.5Vpp @38dB total gain MAXIMUM OUTPUT LEVEL: 40Vpp @10% THD + N, 33W/channel, 8Ω full load MAX.
LIMITED WARRANTY Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the following terms. HOW LONG IS THE WARRANTY Labor and parts are warranted for seven years from the date of the first customer purchase. WHO IS PROTECTED? Only the first purchase customer may enforce this warranty. WHAT IS COVERED AND WHAT IS NOT COVERED Except as below, this warranty covers all defects in material or workmanship in this product.
For the latest information on our products and a list of Kramer distributors, visit our Web site: www.kramerelectronics.com where updates to this user manual may be found. We welcome your questions, comments and feedback. Safety Warning: Disconnect the unit from the power supply before opening/servicing. Caution Kramer Electronics, Ltd. Web site: www.kramerelectronics.com E-mail: info@kramerel.
